See how a running total differs from a rate of change using parcel deliveries:...

https://milasultimatejournal.theglensecret.com/how-do-i-interpret-a-cumulative-total-that-never-goes-down

See how a running total differs from a rate of change using parcel deliveries: 120 parcels by noon is a total, while 15 parcels per hour describes a pace. The article shows how units and time windows make dashboard numbers easier to interpret.